2 files changed, 64 insertions, 0 deletions
diff --git a/src/Update/Update.elm b/src/Update/Update.elm
new file mode 100644
index 0000000..0252fc8
--- /dev/null
+++ b/src/Update/Update.elm
@@ -0,0 +1,48 @@
+module Update.Update
+  ( Action(..)
+  , updates
+  , update
+  ) where
+
+import Signal
+import Dict
+import Time (Time)
+import Maybe
+
+import Model.Model (..)
+import Model.Timer (..)
+import Model.Id (..)
+import Model.IdGenerator (..)
+
+import Update.UpdateTimer (..)
+
+type Action =
+  NoOp
+  | RenameNewTimer String
+  | AddNewTimer
+  | DeltaTime Time
+  | UpdateTimer Id TimerAction
+
+updates : Signal.Channel Action
+updates = Signal.channel NoOp
+
+update : Action -> Model -> Model
+update action model =
+  case action of
+    NoOp -> model
+    RenameNewTimer name ->
+      { model | newTimerName <- name }
+    AddNewTimer ->
+      let (id, newTimerIdGenerator) = getId model.timerIdGenerator
+      in  { model
+          | timers <- Dict.insert id (initialTimer model.currentTime model.newTimerName) model.timers
+          , timerIdGenerator <- newTimerIdGenerator
+          , newTimerName <- ""
+          }
+    DeltaTime delta ->
+      { model
+      | currentTime <- model.currentTime + delta
+      , timers <- substractTimersTime delta model.timers
+      }
+    UpdateTimer id action ->
+      { model | timers <- Dict.update id (Maybe.map (updateTimer action)) model.timers }
diff --git a/src/Update/UpdateTimer.elm b/src/Update/UpdateTimer.elm
new file mode 100644
index 0000000..d8861b7
--- /dev/null
+++ b/src/Update/UpdateTimer.elm
@@ -0,0 +1,16 @@
+module Update.UpdateTimer
+  ( TimerAction(..)
+  , updateTimer
+  ) where
+
+import Model.Timer (..)
+import Model.Id (..)
+
+type TimerAction =
+  ToggleRunning
+
+updateTimer : TimerAction -> Timer -> Timer
+updateTimer action timer =
+  case action of
+    ToggleRunning ->
+      { timer | isRunning <- not timer.isRunning }